The Baylis Revolution is a wind-up MP3 player that features video playback, a photo viewer, an FM radio, a voice recorder, a line input recorder, a text reader, expandable memory, and a flashlight. You can even use it to charge your cell phone.

Tomorrow's World played a huge part in making us the geeks we are today -- so we're thrilled to see the BBC putting some archive material from the show online, including a British invention -- the mobile phone

The world's first wind-up MP3 player is big on features, but short on memory. Its price tag is prohibitively high, but then again, can you put a price on an MP3 player that could survive the apocalypse?